package base.Day02;

public class LongDemo
{
    public static void main(String[] args)
    {
        long a = 23;   // 类型自动转换 整形转为长整型
        long b = 23l;

//        long b = 3.13;
        long e = 1000000000*2*3l;
        System.out.println(e);
        long f = 1000000000*10*3;
        System.out.println(f);
        long f1 = 1000000000*10L*3;
        System.out.println(f1);

    }
}
